Sorel Youth Campus OX T Cold Weather Boot (Little Kid/Big Kid) 100% Suede Leather/Felt Synthetic sole Shaft measures approximately 8" from arch Heel measures approximately 1" Platform measures approximately 0.75 inches Boot opening measures approximately 12.25" around UPPER: Water resistant suede leather and felt. Fleece lining. FOOTBED: Removable molded EVA footbed, microfleece topcover. MIDSOLE: EVA. OUTSOLE: Outsole grade EVA with rubber traction pods.